Chalking device



9 1946 F. E. HARDING CHALKING DEVICE 2 Sheets-Sheet 1 Filed Sept. 25, 1942 Inv ent or 28, 1946. F E.HARD iNG 2,400,926

CHALKING DEVICE 2 Sheets-Sheet 2 Filed Sept. 23, 1942 Patented May 28, 1946 CHALKING DEVICE Frank E. Harding, Lawrence, Mass, assignor to Arlington Mille Lawrence, Mass, at corporation of Massachusetts Application September 23, 194:2, Serial No. 459,459

. I, 3 Claims.

The present invention relates to marking devices and more particularly to devices for marking wound packages of yarn. l l

It is customary to apply chalk marks manually I to bobbins after they have come from the winding machine. Frequently, the chalking is done in accordance with a two-color code. The purpose of these marks is to indicate the routing of the particular bobbins for subsequent opera tions in the mill. Owing to the speed at which the worker is required to apply the marks, the

chalking is often illegibly performed, with the result that the yarns may be improperly routed in later operations, particularly if adjacent winding machines happen to be working with yarns of nearly the same shade.

The object of the present invention is to provide means for positively marking the yarn package as it leaves the winding machine, and particularly to apply a mark of sufficient size and clearness to insure legibility under all circumstances. The invention is particularly suitable for use in connection with a bobbin winding machine, but it may be applied to spools or to wound packages of any form.

In the accompanying drawings, Fig. 1 is a perspective view of a portion of a bobbin winding. machine'with the marking device of the present invention attached thereto; Fig. 2 is an end view of the preferred form ofthe marking device; Fig. 3 is an end view of the winding machine and marking attachment; Fig. 4 is a plan view of the preferred marking device; and Fig. 5 is a section on line 5-5 of Fig. 4.

The machine shown in Fig. 1 comprises a conventional bobbin winding machine having a spindle 6 to support a, bobbin 8 which is being wound. When the bobbin is fully wound it is discharged butt first into a chute until it strikes a stop l2 which normally covers the end of the chute. The stop 12 serves to hold the bobbin until the yarn end is severed and the winding operation on the next bobbin is commenced, after which the stop is raised automatically by mechanism not herein described in detail. Ordinarily, the bobbin would drop from the chute into a bin [4.

According to the present invention, there is provided an automatic chalking device comprising a sheet metal casing it, which is suitably secured to the bottom of the chute I0. As shown particularly in Fig. 5, this casing has side and bottom walls and an internal supporting plate I8 on which the bobbin is discharged from the chute. The plate l8 aligns approximately with the bottom surface of the chute.

The front end of the casing I8 is provided with a chalk holder 29 pivoted by means of pins 22 extending through openings in the side wall of the casing. The holder is pressed upwardly by a coil spring 24 surrounding a rod 28 which is free to move up and down through an opening in the plate '28, extending across the lower front end of the casing. At its upper end the rod is pivotally connected to a swivel member 36 which is attached to the under side of the chalk holder. As shown in Figs. 2 and 4, the holder 20 is formed with a central rib 32 and two inwardly inclined side plates 34. Each side plate 34 is adapted to carry a rectangular bar of chalk 36. The chalk is retained at the front end of the carrier, preferably by means of smooth pins 38 which are soldered to the rib and the side plates, the construction being such that no sharp edges are presented to the yarn after the chalk has worn down.

The bobbin is advanced through the marking device by means of a, knurled roller 40 pivoted in ears 42 formed as extensions of these side walls of the casing. The roller 41] is continuously rotated at slow speed by means of a pulley 43 connected by a belt 44 with a pulley 46 mounted on a convenient slow speed shaft extending across the back f the machine. The roller grips the surface of the yarn and moves the bobbin slowly along the chalk until the bobbin is free, so that it drops into the bin [4.

In order to prevent the bobbin from being cocked upwardly by engagement of the roller 40 with the butt of the bobbin, a guard plate 48 is provided which extends across the marking device immediately in back of the roller.

In practice, the chalk holder is provided with two rectangular bars of chalk 36, usually of different colors, in accordance with the particular marking code which has been decided upon. The lower surface of the yarn on the bobbin engages over a substantial area with the chalk, as the bobbin is fed through the device. As the chalk wears, the surface of engagement between the machine, it is applicable to the marking of spools, cops and yarn packages in general.

Having thus described the invention, I claim:

1. A marking device for yarn packages comprising an attachment for a. winding machine including a casing into which the package is delivered from the winding machine, a chalk holder adapted to receive and support chalk therein, said holder being pivoted in the casing and having inwardly inclined plates and a central rib separating V prising an attachment for a winding machine including a easing into which the package is delivered from the winding machine, a chalk holder adapted to receive and support chalk therein, said holder being pivoted in the casing and having inwardly inclined plates and a central rib separating the plates, retaining means for the chalk at the front end of the holder, spring means to urge the holder into the path of and against a package passing through the casing, a knurled roller for feeding a package through the casing in contact with chalk carried by the holder, said roller being rotatably mounted in the casing with its axis transverse to the direction of feed of the package through the casing, and means for rotating said roller.

3. A marking device for yarn packages comprising an attachment for a bobbin winding machine including a casing having a bottom and side walls for guiding the package in endwise passage therethrough, a chalk holder, means for supporting within the holder a plurality of pieces of chalk in mutually inclined relation to provide multiple engagement with the package in its endwise passage, said holder being pivoted in the casing for swinging movement inwardly of the passage defined by the casing and into the path of the package, a roller opposite the chalk holder and having its axis transverse to the line of passage of the yarn package through the casing, means for rotating the roller, and a spring for urging the chalk holder against a yarn package and for urging the yarn package against the roller to cause the roller to advance the package through the casing in rubbing contact with the chalk pieces.

. FRANK E. HARDING. 

